Matter
Kinetic theory explanation of solids, liquids and gases, inter-particle forces, change of state, and everyday applications like evaporation and sublimation.
9 min read · Weightage ICSE Class 8 Physics — foundation chapter
ICSE / ISC (Class 8-12) Self Study
Class-wise ICSE and ISC chapter notes for Physics, Chemistry, Biology, Mathematics, English, History & Civics, Geography and Computer Applications.
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Filters: all grades, all subjects. 285 chapters shown
Class 8
Physics
Physical Quantities and Measurement
SI units of fundamental and derived quantities, measurement of volume of irregular solids, density, relative density and floatation.
9 min read · Weightage ICSE Class 8 Physics — numerical scoring chapter
Force and Pressure
Types of forces, effects of force, turning effect (moment), thrust and pressure, pressure in liquids and atmospheric pressure.
10 min read · Weightage ICSE Class 8 Physics — high weightage
Energy
Forms of energy and their inter-conversion, law of conservation of energy, work and power with simple numericals, and energy sources.
9 min read · Weightage ICSE Class 8 Physics — numerical based
Light Energy
Reflection at plane and spherical mirrors, laws of reflection, image characteristics, refraction, dispersion of light and the visible spectrum.
10 min read · Weightage ICSE Class 8 Physics — diagram based
Heat Transfer
Conduction, convection and radiation, thermal expansion of solids, liquids and gases, and natural phenomena such as land and sea breeze.
9 min read · Weightage ICSE Class 8 Physics — application based
Sound
Production and propagation of sound through vibrations, the concepts of frequency, amplitude and pitch, the human audible range, and the causes and prevention of noise pollution.
10 min read · Weightage CBSE Class 8 Science
Electricity
Electric current, potential difference, Ohm's law, resistance combinations, electrical power and the heating effect of current.
13 min read · Weightage CBSE Class 10 Science — 8-10 marks
Chemistry
Matter
Kinetic theory explanation of solids, liquids and gases, inter-particle forces, change of state, and everyday applications like evaporation and sublimation.
9 min read · Weightage ICSE Class 8 Physics — foundation chapter
Physical and Chemical Changes
Physical and Chemical Changes — precise Chemistry revision notes for Class 8.
8 min read · Weightage Class 8
Read NotesTest coming soon
Elements, Compounds and Mixtures
Elements, Compounds and Mixtures — precise Chemistry revision notes for Class 8.
8 min read · Weightage Class 8
Read NotesTest coming soon
Atomic Structure
Quantum numbers, orbital shapes, electronic configuration rules and their exceptions form the backbone of every periodicity and bonding question in entrance papers. Mastering Bohr's model, de Broglie wavelength and the Aufbau/Hund/Pauli framework lets you answer configuration and spectral questions in seconds.
11 min read · Weightage 3–4 questions in entrance papers Chemistry
Language of Chemistry
Language of Chemistry — precise Chemistry revision notes for Class 8.
8 min read · Weightage Class 8
Read NotesTest coming soon
Chemical Reactions
Chemical Reactions — precise Chemistry revision notes for Class 8.
8 min read · Weightage Class 8
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Hydrogen
Hydrogen — precise Chemistry revision notes for Class 8.
8 min read · Weightage Class 8
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Water and Carbon
Water and Carbon — precise Chemistry revision notes for Class 8.
8 min read · Weightage Class 8
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Biology
Transportation in Plants
Transportation in Plants — precise Biology revision notes for Class 8.
8 min read · Weightage Class 8
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Reproduction in Plants and Animals
Reproduction in Plants and Animals — precise Biology revision notes for Class 8.
8 min read · Weightage Class 8
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Ecosystems
Ecosystems — precise Biology revision notes for Class 8.
8 min read · Weightage Class 8
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Human Body: Endocrine and Circulatory System
Human Body: Endocrine and Circulatory System — precise Biology revision notes for Class 8.
8 min read · Weightage Class 8
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Health and Hygiene
Health and Hygiene — precise Biology revision notes for Class 8.
8 min read · Weightage Class 8
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Food Production
Food Production — precise Biology revision notes for Class 8.
8 min read · Weightage Class 8
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Mathematics
Rational Numbers and Exponents
Rational Numbers and Exponents — precise Mathematics revision notes for Class 8.
8 min read · Weightage Class 8
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Squares, Cubes and Roots
Squares, Cubes and Roots — precise Mathematics revision notes for Class 8.
8 min read · Weightage Class 8
Read NotesTest coming soon
Algebraic Expressions and Identities
Multiplying monomials, binomials and polynomials, and applying the standard algebraic identities (a+b)², (a−b)² and (a+b)(a−b) to expand and factorise expressions quickly.
9 min read · Weightage CBSE Class 8 Mathematics
Linear Equations and Inequations
Linear Equations and Inequations — precise Mathematics revision notes for Class 8.
8 min read · Weightage Class 8
Read NotesTest coming soon
Percentage, Profit-Loss and Interest
Percentage, Profit-Loss and Interest — precise Mathematics revision notes for Class 8.
8 min read · Weightage Class 8
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Direct and Inverse Variation
Direct and Inverse Variation — precise Mathematics revision notes for Class 8.
8 min read · Weightage Class 8
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Understanding Shapes and Constructions
Understanding Shapes and Constructions — precise Mathematics revision notes for Class 8.
8 min read · Weightage Class 8
Read NotesTest coming soon
Mensuration
Areas of trapeziums, rhombuses and general polygons, and surface areas and volumes of cuboids, cubes and cylinders, with unit conversions for volume and capacity.
10 min read · Weightage CBSE Class 8 Mathematics
Data Handling and Probability
Data Handling and Probability — precise Mathematics revision notes for Class 8.
8 min read · Weightage Class 8
Read NotesTest coming soon
English
Reading Comprehension
A method for BITSAT passages: skim for structure, read the questions first, and separate what the passage states from what it implies — plus tone, inference and title questions.
10 min read · Weightage 2–3 of 10 English Proficiency questions
Grammar: Tenses, Voice and Narration
Agreement, tense sequence, articles, prepositions, modals and error spotting — the rule set behind roughly half of the 10 English Proficiency questions in BITSAT.
12 min read · Weightage 3–4 of 10 English Proficiency questions
Composition: Descriptive and Narrative
Composition: Descriptive and Narrative — precise English revision notes for Class 8.
8 min read · Weightage Class 8
Read NotesTest coming soon
Letter and Notice Writing
Letter and Notice Writing — precise English revision notes for Class 8.
8 min read · Weightage Class 8
Read NotesTest coming soon
Literature: Prose and Poetry
Key prose chapters (The Portrait of a Lady, A Photograph, We're Not Afraid to Die, Discovering Tut, Landscape of the Soul, The Ailing Planet, The Browning Version, The Adventure) and poems from the NCERT Hornbill textbook for Class 11.
12 min read · Weightage Literature (Hornbill) contributes about 20-24 marks via extract-based and long-answer questions in Class 11 boards
History & Civics
The Modern Age in Europe
The Modern Age in Europe — precise History & Civics revision notes for Class 8.
8 min read · Weightage Class 8
Read NotesTest coming soon
Colonialism in India
Colonialism in India — precise History & Civics revision notes for Class 8.
8 min read · Weightage Class 8
Read NotesTest coming soon
The Great Uprising of 1857
The Great Uprising of 1857 — precise History & Civics revision notes for Class 8.
8 min read · Weightage Class 8
Read NotesTest coming soon
Growth of Nationalism
Growth of Nationalism — precise History & Civics revision notes for Class 8.
8 min read · Weightage Class 8
Read NotesTest coming soon
Civics: The Union Legislature and Executive
Civics: The Union Legislature and Executive — precise History & Civics revision notes for Class 8.
8 min read · Weightage Class 8
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Civics: The Judiciary
Civics: The Judiciary — precise History & Civics revision notes for Class 8.
8 min read · Weightage Class 8
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Geography
Resources
Resources — precise Geography revision notes for Class 8.
8 min read · Weightage Class 8
Read NotesTest coming soon
Land, Soil and Water Resources
Land, Soil and Water Resources — precise Geography revision notes for Class 8.
8 min read · Weightage Class 8
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Natural Vegetation and Wildlife
Natural Vegetation and Wildlife — precise Geography revision notes for Class 8.
8 min read · Weightage Class 8
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Agriculture and Industries
Agriculture and Industries — precise Geography revision notes for Class 8.
8 min read · Weightage Class 8
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Population
Population — precise Geography revision notes for Class 8.
8 min read · Weightage Class 8
Read NotesTest coming soon
Map Work: India and the World
Map Work: India and the World — precise Geography revision notes for Class 8.
8 min read · Weightage Class 8
Read NotesTest coming soon
Computer Science
Number Systems and Data Representation
Converting between binary, octal, decimal and hexadecimal number systems, and understanding how text is encoded using ASCII and Unicode.
11 min read · Weightage CBSE Class 9 Computer Science — 3-4 marks
Computer Hardware and Software
Computer Hardware and Software — precise Computer Science revision notes for Class 8.
8 min read · Weightage Class 8
Read NotesTest coming soon
Introduction to Java / Python Programming
Getting started with Python — variables, data types, operators and basic input/output, following correct indentation rules.
11 min read · Weightage CBSE Class 9 Computer Science — Unit 2, Programming
Conditional Statements and Loops
Conditional Statements and Loops — precise Computer Science revision notes for Class 8.
8 min read · Weightage Class 8
Read NotesTest coming soon
Spreadsheets and Presentation Tools
Basics of spreadsheet software — cells, formulas, charts, and organising data using sorting and filtering.
9 min read · Weightage CBSE Class 8 Computer Science — foundational unit
Internet and Cyber Ethics
Internet and Cyber Ethics — precise Computer Science revision notes for Class 8.
8 min read · Weightage Class 8
Read NotesTest coming soon
Class 9
Physics
Measurements and Experimentation
Measurements and Experimentation — precise Physics revision notes for Class 9.
8 min read · Weightage Class 9
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Motion in One Dimension
Motion in One Dimension — precise Physics revision notes for Class 9.
8 min read · Weightage Class 9
Read NotesTest coming soon
Laws of Motion
Newton's three laws, free-body diagrams, friction, circular motion dynamics and pseudo forces — the backbone of all mechanics problem solving.
14 min read · Weightage 4–5% (2–3 questions in NEET, 1–2 in JEE Main)
Fluids
Fluids — precise Physics revision notes for Class 9.
8 min read · Weightage Class 9
Read NotesTest coming soon
Heat and Energy
Heat and Energy — precise Physics revision notes for Class 9.
8 min read · Weightage Class 9
Read NotesTest coming soon
Light: Reflection and Refraction
Laws of reflection and refraction, image formation by spherical mirrors and lenses using the mirror/lens formula with sign convention, and refractive index numericals.
14 min read · Weightage CBSE Class 10 Science — 8-10 marks
Sound
Production and propagation of sound through vibrations, the concepts of frequency, amplitude and pitch, the human audible range, and the causes and prevention of noise pollution.
10 min read · Weightage CBSE Class 8 Science
Electricity and Magnetism
Electricity and Magnetism — precise Physics revision notes for Class 9.
8 min read · Weightage Class 9
Read NotesTest coming soon
Chemistry
The Language of Chemistry
The Language of Chemistry — precise Chemistry revision notes for Class 9.
8 min read · Weightage Class 9
Read NotesTest coming soon
Chemical Changes and Reactions
Chemical Changes and Reactions — precise Chemistry revision notes for Class 9.
8 min read · Weightage Class 9
Read NotesTest coming soon
Water
Water — precise Chemistry revision notes for Class 9.
8 min read · Weightage Class 9
Read NotesTest coming soon
Atomic Structure and Chemical Bonding
Quantum numbers, orbital shapes, electronic configuration rules and their exceptions form the backbone of every periodicity and bonding question in entrance papers. Mastering Bohr's model, de Broglie wavelength and the Aufbau/Hund/Pauli framework lets you answer configuration and spectral questions in seconds.
11 min read · Weightage 3–4 questions in entrance papers Chemistry
The Periodic Table
The Periodic Table — precise Chemistry revision notes for Class 9.
8 min read · Weightage Class 9
Read NotesTest coming soon
Study of the First Element: Hydrogen
Study of the First Element: Hydrogen — precise Chemistry revision notes for Class 9.
8 min read · Weightage Class 9
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Study of Gas Laws
Study of Gas Laws — precise Chemistry revision notes for Class 9.
8 min read · Weightage Class 9
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Atmospheric Pollution
Atmospheric Pollution — precise Chemistry revision notes for Class 9.
8 min read · Weightage Class 9
Read NotesTest coming soon
Biology
Cell: The Unit of Life
Cell theory, prokaryotic vs eukaryotic organisation, and the structure–function map of every cell organelle — a guaranteed NEET scoring chapter.
15 min read · Weightage 5–6% (3–4 questions in NEET every year)
Tissues: Plant and Animal
Tissues: Plant and Animal — precise Biology revision notes for Class 9.
8 min read · Weightage Class 9
Read NotesTest coming soon
Diversity in Living Organisms
Diversity in Living Organisms — precise Biology revision notes for Class 9.
8 min read · Weightage Class 9
Read NotesTest coming soon
Plant Physiology
Plant physiology covers transport of water and nutrients, photosynthesis, respiration, plant hormones and photoperiodism/vernalisation. IAT expects quantitative and mechanistic understanding — light and dark reactions, C3/C4 comparison, hormone actions, and water potential concepts.
16 min read · Weightage 5–7 questions in IAT Biology
Human Anatomy and Physiology
Human physiology integrates digestion, breathing, circulation, excretion and neuro-endocrine control into one coordinated system. IAT tests precise mechanisms — enzyme sites, pressure-volume changes in the cardiac cycle, nephron transport, and hormone feedback loops — rather than rote listing.
16 min read · Weightage 6–8 questions in IAT Biology
Health and Hygiene
Health and Hygiene — precise Biology revision notes for Class 8.
8 min read · Weightage Class 8
Read NotesTest coming soon
Waste Generation and Management
Waste Generation and Management — precise Biology revision notes for Class 9.
8 min read · Weightage Class 9
Read NotesTest coming soon
Mathematics
Rational and Irrational Numbers
Properties of rational numbers (closure, commutativity, associativity, distributivity), identity and inverse elements, and representing rational numbers on the number line.
10 min read · Weightage CBSE Class 8 Mathematics
Compound Interest
Compound Interest — precise Mathematics revision notes for Class 9.
8 min read · Weightage Class 9
Read NotesTest coming soon
Expansions and Factorisation
Factorising algebraic expressions using common factors, regrouping and standard identities, and dividing algebraic expressions by monomials and binomials.
10 min read · Weightage CBSE Class 8 Mathematics
Simultaneous Linear Equations
Simultaneous Linear Equations — precise Mathematics revision notes for Class 9.
8 min read · Weightage Class 9
Read NotesTest coming soon
Indices and Logarithms
Indices and Logarithms — precise Mathematics revision notes for Class 9.
8 min read · Weightage Class 9
Read NotesTest coming soon
Triangles and Congruency
Studying similarity of triangles, criteria for similarity (AAA, SSS, SAS), the Basic Proportionality Theorem, areas of similar triangles, and the Pythagoras theorem.
12 min read · Weightage CBSE Class 10 Mathematics
Rectilinear Figures and Constructions
Rectilinear Figures and Constructions — precise Mathematics revision notes for Class 9.
8 min read · Weightage Class 9
Read NotesTest coming soon
Coordinate Geometry
Coordinate geometry links algebraic equations to geometric shapes — lines, circles and conic sections. IAT questions typically require identifying a conic's standard form from a general equation and then extracting focus, directrix or tangent-related quantities.
17 min read · Weightage 8-10% of the IAT Mathematics section
Mensuration
Areas of trapeziums, rhombuses and general polygons, and surface areas and volumes of cuboids, cubes and cylinders, with unit conversions for volume and capacity.
10 min read · Weightage CBSE Class 8 Mathematics
Trigonometrical Ratios
Trigonometrical Ratios — precise Mathematics revision notes for Class 9.
8 min read · Weightage Class 9
Read NotesTest coming soon
Statistics
Presentation of data using frequency distribution tables, bar graphs, histograms and frequency polygons, and calculation of the mean, median and mode of ungrouped data.
10 min read · Weightage CBSE Class 9 Mathematics
English
Reading Comprehension
A method for BITSAT passages: skim for structure, read the questions first, and separate what the passage states from what it implies — plus tone, inference and title questions.
10 min read · Weightage 2–3 of 10 English Proficiency questions
Grammar: Tenses, Clauses and Prepositions
Agreement, tense sequence, articles, prepositions, modals and error spotting — the rule set behind roughly half of the 10 English Proficiency questions in BITSAT.
12 min read · Weightage 3–4 of 10 English Proficiency questions
Composition Writing
Composition Writing — precise English revision notes for Class 9.
8 min read · Weightage Class 9
Read NotesTest coming soon
Letter and Email Writing
Letter and Email Writing — precise English revision notes for Class 9.
8 min read · Weightage Class 9
Read NotesTest coming soon
Literature: Drama and Prose
Literature: Drama and Prose — precise English revision notes for Class 9.
8 min read · Weightage Class 9
Read NotesTest coming soon
Literature: Poetry
Covers the themes and messages of key poems from the NCERT Class 8 Honeydew textbook such as 'The Ant and the Cricket', 'Geography Lesson' and 'The Duck and the Kangaroo', along with select short stories from the supplementary reader 'It So Happened'.
9 min read · Weightage CBSE Class 8 English — 6-8 marks
History & Civics
The Harappan Civilisation to Vedic Period
The Harappan Civilisation to Vedic Period — precise History & Civics revision notes for Class 9.
8 min read · Weightage Class 9
Read NotesTest coming soon
Jainism, Buddhism and the Mauryan Empire
Jainism, Buddhism and the Mauryan Empire — precise History & Civics revision notes for Class 9.
8 min read · Weightage Class 9
Read NotesTest coming soon
The Sangam Age, Gupta and Medieval India
The Sangam Age, Gupta and Medieval India — precise History & Civics revision notes for Class 9.
8 min read · Weightage Class 9
Read NotesTest coming soon
The Modern Age in Europe
The Modern Age in Europe — precise History & Civics revision notes for Class 8.
8 min read · Weightage Class 8
Read NotesTest coming soon
Civics: Our Constitution
Civics: Our Constitution — precise History & Civics revision notes for Class 9.
8 min read · Weightage Class 9
Read NotesTest coming soon
Civics: Elections and Local Self-Government
Civics: Elections and Local Self-Government — precise History & Civics revision notes for Class 9.
8 min read · Weightage Class 9
Read NotesTest coming soon
Geography
Earth as a Planet and Geographic Grid
Earth as a Planet and Geographic Grid — precise Geography revision notes for Class 9.
8 min read · Weightage Class 9
Read NotesTest coming soon
Rocks, Volcanoes and Earthquakes
Rocks, Volcanoes and Earthquakes — precise Geography revision notes for Class 9.
8 min read · Weightage Class 9
Read NotesTest coming soon
Weathering, Erosion and Landforms
Weathering, Erosion and Landforms — precise Geography revision notes for Class 9.
8 min read · Weightage Class 9
Read NotesTest coming soon
Atmosphere: Composition, Pressure and Winds
Atmosphere: Composition, Pressure and Winds — precise Geography revision notes for Class 9.
8 min read · Weightage Class 9
Read NotesTest coming soon
Humidity, Rainfall and Pollution
Humidity, Rainfall and Pollution — precise Geography revision notes for Class 9.
8 min read · Weightage Class 9
Read NotesTest coming soon
Natural Regions of the World and Map Work
Natural Regions of the World and Map Work — precise Geography revision notes for Class 9.
8 min read · Weightage Class 9
Read NotesTest coming soon
Computer Applications
Object Oriented Programming Concepts
Object Oriented Programming Concepts — precise Computer Applications revision notes for Class 9.
8 min read · Weightage Class 9
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Elementary Java Programming
Elementary Java Programming — precise Computer Applications revision notes for Class 9.
8 min read · Weightage Class 9
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Conditional Constructs
Conditional Constructs — precise Computer Applications revision notes for Class 9.
8 min read · Weightage Class 9
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Iterative Constructs
Iterative Constructs — precise Computer Applications revision notes for Class 9.
8 min read · Weightage Class 9
Read NotesTest coming soon
Nested Loops and Patterns
Nested Loops and Patterns — precise Computer Applications revision notes for Class 9.
8 min read · Weightage Class 9
Read NotesTest coming soon
Library Classes and Input in Java
Library Classes and Input in Java — precise Computer Applications revision notes for Class 9.
8 min read · Weightage Class 9
Read NotesTest coming soon
Class 10
Physics
Force, Work, Power and Energy
Work done by constant and variable forces, work-energy theorem, conservative forces, potential energy curves, collisions and power — the fastest route to solving mechanics problems without kinematics.
13 min read · Weightage 4–5% (2–3 questions in NEET, 1–2 in JEE Main)
Machines
Machines — precise Physics revision notes for Class 10.
8 min read · Weightage Class 10
Read NotesTest coming soon
Refraction of Light at Plane Surfaces
Refraction of Light at Plane Surfaces — precise Physics revision notes for Class 10.
8 min read · Weightage Class 10
Read NotesTest coming soon
Refraction through Lens
Refraction through Lens — precise Physics revision notes for Class 10.
8 min read · Weightage Class 10
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Spectrum
Spectrum — precise Physics revision notes for Class 10.
8 min read · Weightage Class 10
Read NotesTest coming soon
Sound
Production and propagation of sound through vibrations, the concepts of frequency, amplitude and pitch, the human audible range, and the causes and prevention of noise pollution.
10 min read · Weightage CBSE Class 8 Science
Current Electricity and Household Circuits
Ohm's law, resistance combinations, EMF and internal resistance, electrical power and energy, and the safety architecture of house wiring — fuses, MCBs, earthing and the three-pin plug.
15 min read · Weightage High (numericals plus a reasoning question in the ICSE board paper)
Electromagnetism
Electromagnetism — precise Physics revision notes for Class 10.
8 min read · Weightage Class 10
Read NotesTest coming soon
Calorimetry
Calorimetry — precise Physics revision notes for Class 10.
8 min read · Weightage Class 10
Read NotesTest coming soon
Radioactivity
Radioactivity — precise Physics revision notes for Class 10.
8 min read · Weightage Class 10
Read NotesTest coming soon
Chemistry
Periodic Properties and Variations
Periodic Properties and Variations — precise Chemistry revision notes for Class 10.
8 min read · Weightage Class 10
Read NotesTest coming soon
Chemical Bonding
Ionic and covalent bonding, VSEPR geometry, hybridisation, molecular orbital theory, bond parameters, dipole moment and hydrogen bonding — the most frequently examined inorganic-physical crossover chapter.
16 min read · Weightage 6–8% (3–4 questions in NEET, 2–3 in JEE Main)
Study of Acids, Bases and Salts
Study of Acids, Bases and Salts — precise Chemistry revision notes for Class 10.
8 min read · Weightage Class 10
Read NotesTest coming soon
Analytical Chemistry
Analytical Chemistry — precise Chemistry revision notes for Class 10.
8 min read · Weightage Class 10
Read NotesTest coming soon
Mole Concept and Stoichiometry
Mole Concept and Stoichiometry — precise Chemistry revision notes for Class 10.
8 min read · Weightage Class 10
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Electrolysis
Electrolysis — precise Chemistry revision notes for Class 10.
8 min read · Weightage Class 10
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Metallurgy
Metallurgy — precise Chemistry revision notes for Class 10.
8 min read · Weightage Class 10
Read NotesTest coming soon
Study of Compounds: HCl, HNO₃, H₂SO₄, Ammonia
Study of Compounds: HCl, HNO₃, H₂SO₄, Ammonia — precise Chemistry revision notes for Class 10.
8 min read · Weightage Class 10
Read NotesTest coming soon
Organic Chemistry
This chapter builds the electronic-effect and mechanism toolkit — inductive, resonance, hyperconjugation and their impact on stability and reactivity — that underlies every later organic chapter. IUPAC nomenclature and the classification of reaction intermediates (carbocations, carbanions, free radicals) are core recurring exam themes.
12 min read · Weightage 3–4 questions in entrance papers Chemistry
Biology
Cell Cycle, Cell Division and Structure of Chromosomes
Interphase checkpoints, mitosis phase by phase, the two divisions of meiosis and the significance of each — a short, factual chapter that NEET mines every single year for one or two direct questions.
15 min read · Weightage 3–4% (1–2 questions in NEET almost every year)
Genetics
From Mendel's laws through molecular inheritance to the mechanisms of evolution, this chapter connects pattern (crosses, pedigrees), mechanism (DNA replication, transcription, translation, mutation) and process (natural selection, speciation, Hardy-Weinberg) — a core IAT scoring area.
16 min read · Weightage 6–8 questions in IAT Biology
Absorption by Roots and Transpiration
Absorption by Roots and Transpiration — precise Biology revision notes for Class 10.
8 min read · Weightage Class 10
Read NotesTest coming soon
Photosynthesis and Respiration
Photosynthesis and Respiration — precise Biology revision notes for Class 10.
8 min read · Weightage Class 10
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Circulatory System
Circulatory System — precise Biology revision notes for Class 10.
8 min read · Weightage Class 10
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Excretory and Nervous System
Excretory and Nervous System — precise Biology revision notes for Class 10.
8 min read · Weightage Class 10
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Endocrine System and Reproductive System
Endocrine System and Reproductive System — precise Biology revision notes for Class 10.
8 min read · Weightage Class 10
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Population and Human Evolution
Population and Human Evolution — precise Biology revision notes for Class 10.
8 min read · Weightage Class 10
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Pollution
Pollution — precise Biology revision notes for Class 10.
8 min read · Weightage Class 10
Read NotesTest coming soon
Mathematics
GST and Banking
GST and Banking — precise Mathematics revision notes for Class 10.
8 min read · Weightage Class 10
Read NotesTest coming soon
Shares and Dividends
Shares and Dividends — precise Mathematics revision notes for Class 10.
8 min read · Weightage Class 10
Read NotesTest coming soon
Linear Inequations
Linear Inequations — precise Mathematics revision notes for Class 10.
8 min read · Weightage Class 10
Read NotesTest coming soon
Quadratic Equations and Problems
Roots, discriminant, relations between roots and coefficients, common roots, sign of a quadratic and location of roots — a high-frequency JEE Main topic.
13 min read · Weightage 3–4% (1–2 questions in JEE Main every session)
Ratio, Proportion and Remainder Theorem
Ratio, Proportion and Remainder Theorem — precise Mathematics revision notes for Class 10.
8 min read · Weightage Class 10
Read NotesTest coming soon
Matrices
Matrix algebra, special matrices, determinant properties, adjoint and inverse, rank and the consistency of linear systems — a scoring, rule-based chapter with guaranteed questions in JEE Main and boards.
15 min read · Weightage 6–7% (2–3 questions in JEE Main, 1–2 in BITSAT)
Arithmetic and Geometric Progression
Arithmetic and Geometric Progression — precise Mathematics revision notes for Class 10.
8 min read · Weightage Class 10
Read NotesTest coming soon
Coordinate Geometry and Reflection
Coordinate geometry links algebraic equations to geometric shapes — lines, circles and conic sections. IAT questions typically require identifying a conic's standard form from a general equation and then extracting focus, directrix or tangent-related quantities.
17 min read · Weightage 8-10% of the IAT Mathematics section
Similarity and Loci
Similarity and Loci — precise Mathematics revision notes for Class 10.
8 min read · Weightage Class 10
Read NotesTest coming soon
Circles and Tangents
Properties of chords, arcs and angles subtended by them, the relationship between angle at the centre and at the circumference, cyclic quadrilaterals, and their theorems.
11 min read · Weightage CBSE Class 9 Mathematics
Mensuration: Cylinder, Cone and Sphere
Areas of trapeziums, rhombuses and general polygons, and surface areas and volumes of cuboids, cubes and cylinders, with unit conversions for volume and capacity.
10 min read · Weightage CBSE Class 8 Mathematics
Trigonometric Identities and Heights & Distances
Trigonometric Identities and Heights & Distances — precise Mathematics revision notes for Class 10.
8 min read · Weightage Class 10
Read NotesTest coming soon
Statistics and Probability
Probability covers conditional probability, Bayes' theorem and standard distributions, while statistics focuses on measures of central tendency and dispersion. Both reward careful setup — defining the sample space or the correct formula before calculating.
13 min read · Weightage 4–6 of 40 Mathematics questions
English
Reading Comprehension
A method for BITSAT passages: skim for structure, read the questions first, and separate what the passage states from what it implies — plus tone, inference and title questions.
10 min read · Weightage 2–3 of 10 English Proficiency questions
Grammar: Transformation and Error Correction
Agreement, tense sequence, articles, prepositions, modals and error spotting — the rule set behind roughly half of the 10 English Proficiency questions in BITSAT.
12 min read · Weightage 3–4 of 10 English Proficiency questions
Composition Writing
Composition Writing — precise English revision notes for Class 9.
8 min read · Weightage Class 9
Read NotesTest coming soon
Letter, Email and Notice Writing
Letter, Email and Notice Writing — precise English revision notes for Class 10.
8 min read · Weightage Class 10
Read NotesTest coming soon
Literature: Treasure Chest — Short Stories
Literature: Treasure Chest — Short Stories — precise English revision notes for Class 10.
8 min read · Weightage Class 10
Read NotesTest coming soon
Literature: Treasure Chest — Poems
Literature: Treasure Chest — Poems — precise English revision notes for Class 10.
8 min read · Weightage Class 10
Read NotesTest coming soon
Literature: Drama (Merchant of Venice)
Literature: Drama (Merchant of Venice) — precise English revision notes for Class 10.
8 min read · Weightage Class 10
Read NotesTest coming soon
History & Civics
The Union Legislature
The Union Legislature — precise History & Civics revision notes for Class 10.
8 min read · Weightage Class 10
Read NotesTest coming soon
The Union Executive
The Union Executive — precise History & Civics revision notes for Class 10.
8 min read · Weightage Class 10
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The Judiciary
The Judiciary — precise History & Civics revision notes for Class 10.
8 min read · Weightage Class 10
Read NotesTest coming soon
The First War of Independence, 1857
The First War of Independence, 1857 — precise History & Civics revision notes for Class 10.
8 min read · Weightage Class 10
Read NotesTest coming soon
Growth of Nationalism and the Indian National Congress
Growth of Nationalism and the Indian National Congress — precise History & Civics revision notes for Class 10.
8 min read · Weightage Class 10
Read NotesTest coming soon
Mahatma Gandhi and the Mass Movements
Mahatma Gandhi and the Mass Movements — precise History & Civics revision notes for Class 10.
8 min read · Weightage Class 10
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Independence and Partition of India
Independence and Partition of India — precise History & Civics revision notes for Class 10.
8 min read · Weightage Class 10
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The First and Second World Wars
The First and Second World Wars — precise History & Civics revision notes for Class 10.
8 min read · Weightage Class 10
Read NotesTest coming soon
United Nations and Non-Aligned Movement
United Nations and Non-Aligned Movement — precise History & Civics revision notes for Class 10.
8 min read · Weightage Class 10
Read NotesTest coming soon
Geography
Map Work: India
Map Work: India — precise Geography revision notes for Class 10.
8 min read · Weightage Class 10
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Location, Extent and Physical Features of India
Location, Extent and Physical Features of India — precise Geography revision notes for Class 10.
8 min read · Weightage Class 10
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Climate of India
Climate of India — precise Geography revision notes for Class 10.
8 min read · Weightage Class 10
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Soil and Natural Vegetation
Soil and Natural Vegetation — precise Geography revision notes for Class 10.
8 min read · Weightage Class 10
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Water Resources and Irrigation
Water Resources and Irrigation — precise Geography revision notes for Class 10.
8 min read · Weightage Class 10
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Minerals and Energy Resources
Minerals and Energy Resources — precise Geography revision notes for Class 10.
8 min read · Weightage Class 10
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Agriculture in India
Agriculture in India — precise Geography revision notes for Class 10.
8 min read · Weightage Class 10
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Manufacturing Industries
Manufacturing Industries — precise Geography revision notes for Class 10.
8 min read · Weightage Class 10
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Transport and Waste Management
Transport and Waste Management — precise Geography revision notes for Class 10.
8 min read · Weightage Class 10
Read NotesTest coming soon
Computer Applications
Class as the Basis of Computation
Class as the Basis of Computation — precise Computer Applications revision notes for Class 10.
8 min read · Weightage Class 10
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User-Defined Methods
User-Defined Methods — precise Computer Applications revision notes for Class 10.
8 min read · Weightage Class 10
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Constructors
Constructors — precise Computer Applications revision notes for Class 10.
8 min read · Weightage Class 10
Read NotesTest coming soon
Library Classes and Wrapper Classes
Library Classes and Wrapper Classes — precise Computer Applications revision notes for Class 10.
8 min read · Weightage Class 10
Read NotesTest coming soon
String Handling
String Handling — precise Computer Applications revision notes for Class 10.
8 min read · Weightage Class 10
Read NotesTest coming soon
Arrays
Arrays — precise Computer Applications revision notes for Class 10.
8 min read · Weightage Class 10
Read NotesTest coming soon
Input in Java and Iterations
Input in Java and Iterations — precise Computer Applications revision notes for Class 10.
8 min read · Weightage Class 10
Read NotesTest coming soon
Class 11 (ISC)
Physics
Physical World and Measurement
Physical World and Measurement — precise Physics revision notes for Class 11 (ISC).
8 min read · Weightage Class 11 (ISC)
Read NotesTest coming soon
Kinematics
Kinematics builds the language of motion — position, velocity, acceleration and their graphical relationships — used throughout mechanics. Entrance papers frequently test graph-reading and relative-velocity problems involving projectiles, rivers and boats.
13 min read · Weightage 3–4 of 40 Physics questions
Laws of Motion
Newton's three laws, free-body diagrams, friction, circular motion dynamics and pseudo forces — the backbone of all mechanics problem solving.
14 min read · Weightage 4–5% (2–3 questions in NEET, 1–2 in JEE Main)
Work, Power and Energy
Work done by constant and variable forces, work-energy theorem, conservative forces, potential energy curves, collisions and power — the fastest route to solving mechanics problems without kinematics.
13 min read · Weightage 4–5% (2–3 questions in NEET, 1–2 in JEE Main)
Motion of System of Particles and Rigid Body
Motion of System of Particles and Rigid Body — precise Physics revision notes for Class 11 (ISC).
8 min read · Weightage Class 11 (ISC)
Read NotesTest coming soon
Gravitation
Newton's law of gravitation, Kepler's laws, gravitational field/potential energy, and escape/orbital velocity for satellites — a high-yield mechanics chapter.
13 min read · Weightage 1 question typically in board exams; important for JEE/NEET overlap
Properties of Bulk Matter
Properties of Bulk Matter — precise Physics revision notes for Class 11 (ISC).
8 min read · Weightage Class 11 (ISC)
Read NotesTest coming soon
Heat and Thermodynamics
Heat and Thermodynamics — precise Physics revision notes for Class 11 (ISC).
8 min read · Weightage Class 11 (ISC)
Read NotesTest coming soon
Behaviour of Perfect Gases and Kinetic Theory
Molecular model of an ideal gas, pressure derivation, degrees of freedom, specific heats and mean free path — linking microscopic motion to macroscopic gas laws.
12 min read · Weightage 1 question typically in board exams; frequent numerical topic
Oscillations and Waves
Simple harmonic motion links periodic mechanical systems (springs, pendulums) through a single differential equation, while wave motion covers propagation, superposition, beats and the Doppler effect. Entrance papers repeatedly test SHM energy partition and standard wave-formula plug-ins.
14 min read · Weightage 3–4 of 40 Physics questions
Chemistry
Some Basic Concepts of Chemistry
Mole concept, stoichiometry, limiting reagent, concentration terms and empirical/molecular formulae — the calculation base of all physical chemistry.
12 min read · Weightage 3–4% (1–2 questions every year in both NEET and JEE Main)
Structure of Atom
Structure of Atom — precise Chemistry revision notes for Class 11 (ISC).
8 min read · Weightage Class 11 (ISC)
Read NotesTest coming soon
Classification of Elements and Periodicity
The modern periodic law, block-wise classification of elements, and periodic trends in atomic size, ionisation enthalpy, electron gain enthalpy and electronegativity, including key exceptions.
13 min read · Weightage 4-6 marks in CBSE boards; frequent NCERT-based questions
Chemical Bonding and Molecular Structure
Ionic and covalent bonding, VSEPR geometry, hybridisation, molecular orbital theory, bond parameters, dipole moment and hydrogen bonding — the most frequently examined inorganic-physical crossover chapter.
16 min read · Weightage 6–8% (3–4 questions in NEET, 2–3 in JEE Main)
States of Matter: Gases and Liquids
States of Matter: Gases and Liquids — precise Chemistry revision notes for Class 11 (ISC).
8 min read · Weightage Class 11 (ISC)
Read NotesTest coming soon
Chemical Thermodynamics and Equilibrium
Chemical Thermodynamics and Equilibrium — precise Chemistry revision notes for Class 11 (ISC).
8 min read · Weightage Class 11 (ISC)
Read NotesTest coming soon
Redox Reactions and Hydrogen
Oxidation numbers, identification of oxidising and reducing agents, balancing by oxidation-number and ion-electron methods, disproportionation and redox titrations.
11 min read · Weightage 2–3% (1 question in NEET, 1 in JEE Main)
s-Block and p-Block Elements
Groups 13–18 show sharp anomalies driven by the inert pair effect, back bonding and catenation trends, tested heavily through oxoacids, boranes, silicates and interhalogen structures. Entrance papers focus on structure–bonding correlations and characteristic reactions of these elements and their compounds.
13 min read · Weightage 4–5 questions in entrance papers Chemistry
Organic Chemistry: Basic Principles
This chapter builds the electronic-effect and mechanism toolkit — inductive, resonance, hyperconjugation and their impact on stability and reactivity — that underlies every later organic chapter. IUPAC nomenclature and the classification of reaction intermediates (carbocations, carbanions, free radicals) are core recurring exam themes.
12 min read · Weightage 3–4 questions in entrance papers Chemistry
Hydrocarbons
Alkanes, alkenes, alkynes, arenes and alkyl/aryl halides are tested through characteristic reaction mechanisms — Markovnikov/anti-Markovnikov addition, free-radical substitution, electrophilic aromatic substitution and SN1/SN2/E1/E2 pathways. Recognising which mechanism applies from substrate, reagent and conditions is the key exam skill in this chapter.
13 min read · Weightage 4–5 questions in entrance papers Chemistry
Biology
Diversity of Living Organisms
Diversity of Living Organisms — precise Biology revision notes for Class 11 (ISC).
8 min read · Weightage Class 11 (ISC)
Read NotesTest coming soon
Structural Organisation in Plants and Animals
This chapter covers plant and animal tissue systems, morphology of flowering plants, and the anatomy of a representative animal (frog/cockroach type questions). IAT focuses on precise tissue identification, floral formula interpretation, and structural-functional correlation.
15 min read · Weightage 4–6 questions in IAT Biology
Cell: Structure and Function
The cell is the fundamental structural and functional unit of life, with prokaryotic and eukaryotic organisation, membrane-bound organelles and division machinery. IAT tests precise organelle function, membrane transport mechanisms and comparative cell biology.
16 min read · Weightage 6–8 questions in IAT Biology
Biomolecules and Enzymes
Biomolecules and Enzymes — precise Biology revision notes for Class 11 (ISC).
8 min read · Weightage Class 11 (ISC)
Read NotesTest coming soon
Plant Physiology
Plant physiology covers transport of water and nutrients, photosynthesis, respiration, plant hormones and photoperiodism/vernalisation. IAT expects quantitative and mechanistic understanding — light and dark reactions, C3/C4 comparison, hormone actions, and water potential concepts.
16 min read · Weightage 5–7 questions in IAT Biology
Human Physiology I
Human physiology integrates digestion, breathing, circulation, excretion and neuro-endocrine control into one coordinated system. IAT tests precise mechanisms — enzyme sites, pressure-volume changes in the cardiac cycle, nephron transport, and hormone feedback loops — rather than rote listing.
16 min read · Weightage 6–8 questions in IAT Biology
Human Physiology II
Human physiology integrates digestion, breathing, circulation, excretion and neuro-endocrine control into one coordinated system. IAT tests precise mechanisms — enzyme sites, pressure-volume changes in the cardiac cycle, nephron transport, and hormone feedback loops — rather than rote listing.
16 min read · Weightage 6–8 questions in IAT Biology
Mathematics
Sets, Relations and Functions
Sets, relations and functions form the logical backbone of the IAT Mathematics section. Questions test set operations and Venn-diagram counting, properties of relations (reflexive, symmetric, transitive, equivalence), and function concepts such as domain, range, injectivity/surjectivity, composition and inverses.
14 min read · Weightage 6-8 of the IAT Mathematics section
Trigonometric Functions
Trigonometric Functions — precise Mathematics revision notes for Class 11 (ISC).
8 min read · Weightage Class 11 (ISC)
Read NotesTest coming soon
Complex Numbers and Quadratic Equations
Complex Numbers and Quadratic Equations — precise Mathematics revision notes for Class 11 (ISC).
8 min read · Weightage Class 11 (ISC)
Read NotesTest coming soon
Permutations, Combinations and Binomial Theorem
Counting principles, arrangements with restrictions, and the binomial expansion with its general and middle terms are a reliable, formula-driven source of exam marks. Precision in identifying whether order matters is the single biggest skill here.
13 min read · Weightage 4–6 of 40 Mathematics questions
Sequences and Series
Arithmetic, geometric, harmonic and arithmetico-geometric progressions, means and inequalities, special summations and telescoping techniques — the chapter that quietly powers half of the algebra you will meet later.
17 min read · Weightage 5–6% (2–3 questions in JEE Main, guaranteed in BITSAT)
Straight Lines and Conic Sections
Parabola, ellipse and hyperbola in standard form — focus, directrix, eccentricity, latus rectum, tangents, normals, chord of contact and the classic parametric results.
14 min read · Weightage 6–8% (2–3 questions in JEE Main, 1–2 in Advanced)
Introduction to 3D Geometry and Vectors
Introduction to 3D Geometry and Vectors — precise Mathematics revision notes for Class 11 (ISC).
8 min read · Weightage Class 11 (ISC)
Read NotesTest coming soon
Limits and Derivatives
Limits and Derivatives — precise Mathematics revision notes for Class 11 (ISC).
8 min read · Weightage Class 11 (ISC)
Read NotesTest coming soon
Statistics and Probability
Probability covers conditional probability, Bayes' theorem and standard distributions, while statistics focuses on measures of central tendency and dispersion. Both reward careful setup — defining the sample space or the correct formula before calculating.
13 min read · Weightage 4–6 of 40 Mathematics questions
Mathematical Reasoning and Linear Inequalities
Mathematical reasoning covers statements, logical connectives, truth tables, and the validity of arguments. It is a low-formula, high-precision topic — most errors come from misreading a connective or a quantifier rather than from a computational slip.
10 min read · Weightage 2-4 of the IAT Mathematics section
English
Reading Comprehension and Précis
Reading Comprehension and Précis — precise English revision notes for Class 11 (ISC).
8 min read · Weightage Class 11 (ISC)
Read NotesTest coming soon
Composition: Argumentative and Descriptive
Composition: Argumentative and Descriptive — precise English revision notes for Class 11 (ISC).
8 min read · Weightage Class 11 (ISC)
Read NotesTest coming soon
Letter and Report Writing
Letter and Report Writing — precise English revision notes for Class 11 (ISC).
8 min read · Weightage Class 11 (ISC)
Read NotesTest coming soon
Grammar and Usage
Agreement, tense sequence, articles, prepositions, modals and error spotting — the rule set behind roughly half of the 10 English Proficiency questions in BITSAT.
12 min read · Weightage 3–4 of 10 English Proficiency questions
Literature: Drama and Prose
Literature: Drama and Prose — precise English revision notes for Class 9.
8 min read · Weightage Class 9
Read NotesTest coming soon
Literature: Poetry
Covers the themes and messages of key poems from the NCERT Class 8 Honeydew textbook such as 'The Ant and the Cricket', 'Geography Lesson' and 'The Duck and the Kangaroo', along with select short stories from the supplementary reader 'It So Happened'.
9 min read · Weightage CBSE Class 8 English — 6-8 marks
Computer Science
Boolean Algebra
Boolean Algebra — precise Computer Science revision notes for Class 11 (ISC).
8 min read · Weightage Class 11 (ISC)
Read NotesTest coming soon
Computer Hardware and Logic Gates
Computer Hardware and Logic Gates — precise Computer Science revision notes for Class 11 (ISC).
8 min read · Weightage Class 11 (ISC)
Read NotesTest coming soon
Introduction to Java Programming
Introduction to Java Programming — precise Computer Science revision notes for Class 11 (ISC).
8 min read · Weightage Class 11 (ISC)
Read NotesTest coming soon
Objects and Classes
Objects and Classes — precise Computer Science revision notes for Class 11 (ISC).
8 min read · Weightage Class 11 (ISC)
Read NotesTest coming soon
Arrays and Strings
Arrays and Strings — precise Computer Science revision notes for Class 11 (ISC).
8 min read · Weightage Class 11 (ISC)
Read NotesTest coming soon
Recursion and Iteration
Recursion and Iteration — precise Computer Science revision notes for Class 11 (ISC).
8 min read · Weightage Class 11 (ISC)
Read NotesTest coming soon
Class 12 (ISC)
Physics
Electrostatics
Coulomb's law, electric field and potential, dipoles, Gauss's law with symmetry, conductors, capacitance and dielectrics — a chapter where choosing the right symmetry converts a page of integration into a one-line answer.
20 min read · Weightage 8–9% (3–4 questions in NEET, 2–3 in JEE Main)
Current Electricity
Ohm's law, drift velocity, resistivity, series-parallel networks, Kirchhoff's rules, Wheatstone bridge, potentiometer and cell combinations — the highest-yield electricity chapter for both exams.
15 min read · Weightage 6–7% (3–4 questions in NEET, 2–3 in JEE Main)
Magnetic Effects of Current and Magnetism
Magnetic Effects of Current and Magnetism — precise Physics revision notes for Class 12 (ISC).
8 min read · Weightage Class 12 (ISC)
Read NotesTest coming soon
Electromagnetic Induction and Alternating Currents
Electromagnetic Induction and Alternating Currents — precise Physics revision notes for Class 12 (ISC).
8 min read · Weightage Class 12 (ISC)
Read NotesTest coming soon
Electromagnetic Waves
Electromagnetic induction, alternating current circuits and Maxwell's unification into electromagnetic waves form a tightly connected block. IAT problems commonly chain a motional-emf or mutual-inductance setup into an LCR resonance or power calculation.
17 min read · Weightage 7–9% of IAT Physics
Ray Optics and Optical Instruments
Reflection at plane and spherical mirrors, refraction, total internal reflection, prisms, thin lenses, lens combinations and the optical instruments built from them — a high-scoring, formula-driven chapter where sign convention decides your marks.
18 min read · Weightage 5–6% (3–4 questions in NEET, 1–2 in JEE Main)
Wave Optics
Huygens' principle, Young's double slit interference, thin-film colours, single-slit diffraction, resolving power and polarisation — the wave picture of light with all standard numericals.
13 min read · Weightage 3–4% (1–2 questions in NEET, 1–2 in JEE Main)
Dual Nature of Radiation and Matter
Dual Nature of Radiation and Matter — precise Physics revision notes for Class 12 (ISC).
8 min read · Weightage Class 12 (ISC)
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Atoms and Nuclei
Atoms and Nuclei — precise Physics revision notes for Class 12 (ISC).
8 min read · Weightage Class 12 (ISC)
Read NotesTest coming soon
Electronic Devices
Electronic Devices — precise Physics revision notes for Class 12 (ISC).
8 min read · Weightage Class 12 (ISC)
Read NotesTest coming soon
Chemistry
Solid State
Solid State — precise Chemistry revision notes for Class 12 (ISC).
8 min read · Weightage Class 12 (ISC)
Read NotesTest coming soon
Solutions and Colligative Properties
Solutions and Colligative Properties — precise Chemistry revision notes for Class 12 (ISC).
8 min read · Weightage Class 12 (ISC)
Read NotesTest coming soon
Electrochemistry
Electrochemistry links chemical change to electrical energy through galvanic and electrolytic cells, EMF, the Nernst equation and Faraday's laws. Entrance papers frequently test cell notation, standard electrode potentials, conductance and quantitative electrolysis calculations.
11 min read · Weightage 3–4 questions in entrance papers Chemistry
Chemical Kinetics
Rate of reaction, rate laws and order, integrated rate equations, half-life, the Arrhenius equation, collision theory and catalysis — a compact, highly formula-driven chapter that reliably delivers full marks with practice.
16 min read · Weightage 4–5% (2 questions in NEET, 1–2 in JEE Main, 7 marks in CBSE XII)
Surface Chemistry
Colligative properties link solute amount to measurable changes in vapour pressure, boiling point, freezing point and osmotic pressure, while surface chemistry covers adsorption, colloids and catalysis. IAT tests both quantitative colligative calculations (with van't Hoff factor corrections) and conceptual surface-chemistry classification.
13 min read · Weightage 6–8 questions in IAT Chemistry
p-Block, d-Block and f-Block Elements
Groups 13–18 show sharp anomalies driven by the inert pair effect, back bonding and catenation trends, tested heavily through oxoacids, boranes, silicates and interhalogen structures. Entrance papers focus on structure–bonding correlations and characteristic reactions of these elements and their compounds.
13 min read · Weightage 4–5 questions in entrance papers Chemistry
Coordination Compounds
Coordination Compounds — precise Chemistry revision notes for Class 12 (ISC).
8 min read · Weightage Class 12 (ISC)
Read NotesTest coming soon
Haloalkanes, Alcohols, Phenols and Ethers
Haloalkanes, Alcohols, Phenols and Ethers — precise Chemistry revision notes for Class 12 (ISC).
8 min read · Weightage Class 12 (ISC)
Read NotesTest coming soon
Aldehydes, Ketones, Carboxylic Acids and Amines
Aldehydes, Ketones, Carboxylic Acids and Amines — precise Chemistry revision notes for Class 12 (ISC).
8 min read · Weightage Class 12 (ISC)
Read NotesTest coming soon
Biomolecules and Polymers
Biomolecules (carbohydrates, proteins, nucleic acids, vitamins, hormones) sustain life processes, polymers are giant molecules built from repeating monomer units used across industries, and environmental chemistry studies pollution of air, water and soil along with green chemistry principles. IAT tests structural classification, biochemical reactions, polymer types/uses and pollution mechanisms.
14 min read · Weightage 6–8 questions in IAT Chemistry
Biology
Reproduction in Plants and Humans
Reproduction spans sexual reproduction in flowering plants (pollination, fertilisation, seed/fruit development), and human reproduction including gametogenesis, menstrual cycle, fertilisation, and reproductive health. IAT tests precise sequences and structural details over rote memorisation.
16 min read · Weightage 5–7 questions in IAT Biology
Reproductive Health and ART
Reproductive Health and ART — precise Biology revision notes for Class 12 (ISC).
8 min read · Weightage Class 12 (ISC)
Read NotesTest coming soon
Principles of Inheritance and Variation
Mendelian genetics, deviations from Mendelism, chromosomal theory, linkage, sex determination, pedigree analysis and genetic disorders — consistently one of the top-scoring NEET Genetics chapters.
16 min read · Weightage 7–8% (4–5 questions every year in NEET)
Molecular Basis of Inheritance
Molecular Basis of Inheritance — precise Biology revision notes for Class 12 (ISC).
8 min read · Weightage Class 12 (ISC)
Read NotesTest coming soon
Origin and Evolution of Life
Origin and Evolution of Life — precise Biology revision notes for Class 12 (ISC).
8 min read · Weightage Class 12 (ISC)
Read NotesTest coming soon
Human Health and Diseases
Human Health and Diseases — precise Biology revision notes for Class 12 (ISC).
8 min read · Weightage Class 12 (ISC)
Read NotesTest coming soon
Biotechnology: Principles and Applications
Biotechnology covers the principles and processes of recombinant DNA technology, and its applications in agriculture, medicine and industry, including transgenic organisms, gene therapy, and ethical/biosafety issues. IAT expects precise understanding of molecular tools (restriction enzymes, vectors, PCR, gel electrophoresis) and applied case studies (Bt cotton, golden rice, insulin production, gene therapy).
16 min read · Weightage 5–7 questions in IAT Biology
Ecology: Organisms, Populations and Ecosystems
Ecology: Organisms, Populations and Ecosystems — precise Biology revision notes for Class 12 (ISC).
8 min read · Weightage Class 12 (ISC)
Read NotesTest coming soon
Biodiversity and Conservation
Biodiversity and Conservation — precise Biology revision notes for Class 12 (ISC).
8 min read · Weightage Class 12 (ISC)
Read NotesTest coming soon
Mathematics
Relations and Functions
Sets, relations and functions form the logical backbone of the IAT Mathematics section. Questions test set operations and Venn-diagram counting, properties of relations (reflexive, symmetric, transitive, equivalence), and function concepts such as domain, range, injectivity/surjectivity, composition and inverses.
14 min read · Weightage 6-8 of the IAT Mathematics section
Inverse Trigonometric Functions
Inverse Trigonometric Functions — precise Mathematics revision notes for Class 12 (ISC).
8 min read · Weightage Class 12 (ISC)
Read NotesTest coming soon
Matrices and Determinants
Matrix algebra, special matrices, determinant properties, adjoint and inverse, rank and the consistency of linear systems — a scoring, rule-based chapter with guaranteed questions in JEE Main and boards.
15 min read · Weightage 6–7% (2–3 questions in JEE Main, 1–2 in BITSAT)
Continuity, Differentiability and Differentiation
Continuity, Differentiability and Differentiation — precise Mathematics revision notes for Class 12 (ISC).
8 min read · Weightage Class 12 (ISC)
Read NotesTest coming soon
Applications of Derivatives
Applications of Derivatives — precise Mathematics revision notes for Class 12 (ISC).
8 min read · Weightage Class 12 (ISC)
Read NotesTest coming soon
Integrals and Their Applications
Integrals and Their Applications — precise Mathematics revision notes for Class 12 (ISC).
8 min read · Weightage Class 12 (ISC)
Read NotesTest coming soon
Differential Equations
Differential equations test the ability to identify order/degree, form a DE from a geometric or physical condition, and solve first-order equations by variable separable, homogeneous or linear methods. IAT questions frequently combine formation with solving, or embed a growth/decay application.
13 min read · Weightage 4-6 of the IAT Mathematics section
Vectors and Three Dimensional Geometry
Vector algebra, dot and cross products, scalar and vector triple products, direction cosines, lines and planes in space, shortest distance and angles — a highly scoring chapter where a clean vector method replaces long coordinate computation.
18 min read · Weightage 8–10% (3–4 questions across JEE Main sessions)
Probability
Probability covers conditional probability, Bayes' theorem and standard distributions, while statistics focuses on measures of central tendency and dispersion. Both reward careful setup — defining the sample space or the correct formula before calculating.
13 min read · Weightage 4–6 of 40 Mathematics questions
Linear Programming and Applications of Mathematics
Advanced formulation, graphical solution and optimisation of linear programming problems, covering standard problem types (manufacturing, diet, transportation) and the corner point method with unbounded regions.
13 min read · Weightage 6 marks in CBSE boards (one full LPP problem every year)
English
Reading Comprehension and Summary
A method for BITSAT passages: skim for structure, read the questions first, and separate what the passage states from what it implies — plus tone, inference and title questions.
10 min read · Weightage 2–3 of 10 English Proficiency questions
Composition: Argumentative, Discursive and Narrative
Composition: Argumentative, Discursive and Narrative — precise English revision notes for Class 12 (ISC).
8 min read · Weightage Class 12 (ISC)
Read NotesTest coming soon
Letter, Email and Report Writing
Letter, Email and Report Writing — precise English revision notes for Class 12 (ISC).
8 min read · Weightage Class 12 (ISC)
Read NotesTest coming soon
Grammar and Sentence Transformation
Agreement, tense sequence, articles, prepositions, modals and error spotting — the rule set behind roughly half of the 10 English Proficiency questions in BITSAT.
12 min read · Weightage 3–4 of 10 English Proficiency questions
Literature: Drama
Literature: Drama — precise English revision notes for Class 12 (ISC).
8 min read · Weightage Class 12 (ISC)
Read NotesTest coming soon
Literature: Prose and Poetry
Key prose chapters (The Portrait of a Lady, A Photograph, We're Not Afraid to Die, Discovering Tut, Landscape of the Soul, The Ailing Planet, The Browning Version, The Adventure) and poems from the NCERT Hornbill textbook for Class 11.
12 min read · Weightage Literature (Hornbill) contributes about 20-24 marks via extract-based and long-answer questions in Class 11 boards
Computer Science
Boolean Algebra and Logic Circuits
Boolean Algebra and Logic Circuits — precise Computer Science revision notes for Class 12 (ISC).
8 min read · Weightage Class 12 (ISC)
Read NotesTest coming soon
Computer Hardware and Propositional Logic
Computer Hardware and Propositional Logic — precise Computer Science revision notes for Class 12 (ISC).
8 min read · Weightage Class 12 (ISC)
Read NotesTest coming soon
Implementation of Algorithms in Java
Implementation of Algorithms in Java — precise Computer Science revision notes for Class 12 (ISC).
8 min read · Weightage Class 12 (ISC)
Read NotesTest coming soon
Objects, Classes and Inheritance
Objects, Classes and Inheritance — precise Computer Science revision notes for Class 12 (ISC).
8 min read · Weightage Class 12 (ISC)
Read NotesTest coming soon
Data Structures: Stack, Queue and Linked List
The LIFO (Last In First Out) stack data structure, its core operations push/pop/peek, and its implementation and applications using Python lists.
10 min read · Weightage CBSE Class 12 Computer Science — Unit 1, ~8 marks
Exception Handling and File Handling
Exception Handling and File Handling — precise Computer Science revision notes for Class 12 (ISC).
8 min read · Weightage Class 12 (ISC)
Read NotesTest coming soon
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